first of all i like my music detailed and clear, the iPod classic with 1.1.2 firmware is certainly a step backward on my etymotic ER6i, i find some detail were missing, prior to the 1.1.2 firmware the music is bit more quieter and wasnt satisfying as well. Then i got my self the iPhone 3G, and wow it is clear detailed once again.
i mainly use EQ of Hip Hop on both 80GB classic and iPhone, iPhone just sounds better and i prefer to use that now. I also got an 2nd Gen Ipod Mini, Havent used that in sometime :P